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Finding the Fourth Proportional to 995,646,777.90, 1,490,600,385.45 and 995,646,777.90

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Solution

The fourth proportional to 995,646,777.90, 1,490,600,385.45 and 995,646,777.90 is: 1,490,600,385.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    995,646,777.90 : 1,490,600,385.45 = 995,646,777.90 : x
  2. Step 2: Convert to fraction form
    995,646,777.90/1,490,600,385.45 = 995,646,777.90/x
  3. Step 3: Cross multiply
    995,646,777.90x = 1,490,600,385.45 × 995,646,777.90
  4. Step 4: Simplify right side
    995,646,777.90x = 1,484,111,470,909,790,464
  5. Step 5: Solve for x
    x = 1,484,111,470,909,790,464/995,646,777.90
  6. Step 6: Final answer
    x = 1,490,600,385.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.